baber/WOPTO huggingface dataset:
Patent GB-381040-A (GB)
Title: Improvements in pivots, particularly for shackles for springs
IPC: B60G11/12
Filed: 1932-01-01
Abstract: 381,040. Laminated springs. TRYON, W. A., West Church Street, Elmira, New York, U.S.A. Jan. 1, 1932, No. 105. Convention date, Oct. 15, 1931. [Class 108 (iii).] A connection between two relatively movable elements includes an internally threaded sleeve 13 and a pair of externally threaded studs 7 screwed into the sleeve, carried by means independent of the sleeve and continuously urged by resilient means, e.g. springs 12, in opposite directions with respect to the sleeve, to maintain bearing engagement between the threads on the studs and those in the sleeve. In one form, as used in a shackle for vehicle laminated suspension springs, the sleeves 13 are carried bv the vehicle frame H and the spring eye S and the studs are formed with conical portions 6 co-operating with holes formed in the links 2, 2<1>, castellated nuts 9 on threaded extensions 8 of the studs facilitating assembly. A compressed paper, fibre, &c. bush 4 may be interposed between the links and the studs and it is stated that a taper of 7¢ provides locking engagement. The spring 12 is housed between the hollow ends of the studs and this space is filled with grease to facilitate lubrication. Felt washers or the like 18 may be provided to assist in confining the lubricant. In a modification, the extensions 8 are omitted and the shackle is assembled by a central bolt 20, Fig. 3, preferably having an elliptical or other noncircular shank, e.g. circular with one or two flats, square or polygonal, co-operating with a correspondingly shaped boss 24 formed on the link 2. A helical or dished plate spring 30 forms the resilient means. In a further modification two bolts passing axially through the studs replace the single bolt 20. Resilient means similar to that provided for the bolt 20 are provided for each bolt.
Patent GB-714616-A (GB)
Title: Method of and apparatus for processing material in containers
IPC: A23L3/02
Filed: 1952-01-02
Abstract: 714,616. Rotating arms conveying along guides; screw conveyers. CHAIN BELT CO. Jan. 2, 1952 [Jan. 8, 1951], No. 176/52. Class 78(1) [Also in Group VI] Apparatus (Figs. 1, 2, 3 and 5) for the heat treatment of substances in containers C, e.g. food in cans, includes a housing 20 containing heat - transferring fluid, in which housing is a rotatable drum 22 with a helical trackway 23 and, coaxial with the drum, an independently rotatable reel 24 having longitudinal trackways 25 intersecting the helical trackway to form pockets for holding the containers with their axes disposed radially to the axis of rotation of the drum and reel. Progression of the containers through the housing is effected by holding the drum stationary and rotating the reel; this rate of movement may be reduced by rotating the drum in the same direction as the reel, but at less speed. Containers arriving in procession on a feeding conveyer 33 for entry into the housing engage the threads of a horizontal screw 115 driven in synchronization with a rotating vaned turret 111; the screw urges the containers in spaced relationship at increasing speed towards the turret, the speed of a container on arrival at the turret being equal to the speed of the turret vanes; the turret engages each container to move it round an arcuate guide 120, through a port 112 and into the end of the reel trackway 25 at a speed equal to that of the reel; as the reel continues to turn, it moves the containers circumferentially of the drum 22 and feeds them successively into the entrance end of the helical trackway 23. Containers discharging from the housing at a port 140 are carried into a circumferential trackway 52 to a vaned turret 151 operating in synchronism with the reel, which turret moves each container in an arcuate path on to a discharge conveyer 35.
Patent GB-400029-A (GB)
Title: Improvements in light mixing apparatus
IPC: F21V7/00
Filed: 1933-01-03
Abstract: 400,029. Light-mixing apparatus. HOLOPHANE, Ltd., Elverton Street, Vincent Square, London. Jan. 3, 1933, No. 190. Convention date, July 1, 1932. [Class 75 (iv).] Light-mixing apparatus comprises two spaced rectilinear light sources of unlike colour characteristics associated with reflectors and/or refractors, and a prismatic light transmitting member adapted to receive a beam of light or crossed beams of light from either or both of the sources and form the same into a mixed emergent beam having a predetermined direction. In the form shown in Fig. 1, parallel rectilinear light sources L, L<1> are arranged along the focal axes of parabolic trough-shaped reflectors 11, 12 arranged obliquely at the sides of a prismatic mixing plate 10. In the form shown in Fig. 3, the light sources L, L<1> are arranged along the axes of curvature of circular trough-shaped reflectors 30, whilst flat or trough-shaped one-piece or two-piece rectilinear prismatic lenses 33, 34 project the light in flat parallel beams on to a prismatic mixing plate 37, parabolic trough-shaped recuperating reflectors 35, 36 being arranged above the openings between the reflectors and the prismatic lenses. Fig. 9 shows a skylight comprising spaced rectilinear light sources 90 each associated with oblique rectilinear lenses 91, 92 and a circular trough-shaped reflector 93, the beams being mixed by prismatic plates 94. The light sources may comprise rectilinear incandescent filament bulbs, neon, mercury, or other electric discharge tubes, or a series of closelyspaced point sources, and the reflectors may be made of polished metal or prismatic or silvered glass. The light sources may be placed slightly out of focus or the reflectors may be slightly corrugated or rippled or given a slightly matte finish. The prismatic mixing plate may be flat, troughed transversely, or of zig-zag formation longitudinally, and it may direct the light by internal reflection or by refraction. To modify the direction of the emergent beam, the outer surface of this plate may be formed with flutes or additional prisms, or it may be associated with another prismatic plate. To diffuse the emergent beam the plate may be associated with a diffusing plate of etched, flashed, opal, ribbed, or pebbled glass.
Patent GB-283122-A (GB)
Title: Improvements in or relating to rubber articles
IPC: C08J3/24
Filed: 1928-01-03
Abstract: 283,122. Peterson, L. C. Jan. 3, 1927, [Convention date]. Junction rubber.-In the manufacture of sheet material consisting of layers of vulcanized and unvulcanized rubber, the unvulcanized layer has incorporated therein a material which is a neutralizer of vulcanizing agents thus preventing partial vulcanization of the layer owing to migration of the vulcanizing agent. Suitable neutralizers are small amounts of inorganic acids such as hydrochloric, sulphuric or phosphonic acids; acid salts of alkali or alkali earth metals such as sodium bisulphite; or organic acids such as acetic, lactic or tannic acid. In an example, the components are, for the unvulcanized layer, thin pale crepe 58 parts, barytes 38, rosin oil 3, and sodium bisulphate, 1 part, and for the vulcanized layer, thin pale crepe 64, sulphur 1.8, zinc oxide 10, lithopone 22.6, and diorthotolylthiourea 1.6 parts. The first compound of thickness about 0.017 of an inch is run on to a fabric such as holland, the other compound is rolled to a thickness of 0.030 of an inch and superposed whilst, hot upon the first, the exposed surface of the latter is then starched. and the whole built.-up sheet is heated a temperature of 80‹ C.
Patent GB-1150393-A (GB)
Title: Machine Tool
Inventor: DIENER ROBERT EDWARD
IPC: B23Q5/34
Filed: 1968-01-02
Abstract: 1,150,393. Tool slides. WARNER & SWASEY CO. 2 Jan., 1968 [5 Jan., 1967], No. 250/68. Headings B3B and B3T. [Also in Division F2] In a machine tool such as a lathe, having a tool-carrying slide which is mounted on the bed for movement in a path inclined to the vertical and in which drive means is provided for moving the slide in the inclined path, mechanical braking means is provided to prevent downward movement of the slide due to self weight when the machine is inoperative and the magnetic brake inactive. The slide 24 carries a tool turret 13 and moves transversely of the lathe spindle 11 and is driven by motor (35), Fig. 3 (not shown), via a shaft 33 on an extension of which is a ball screw 31 which rotates with the shaft to effect movement of the slide. The mechanical brake 50 is connected to the shaft 33 and includes arcuate brake members 53, 54 with brake shoes 51, 52 which continuously engage an annular brake drum 70 mounted on the outer sleeve of a roller type overrunning clutch (75), Figs. 4, 6 and 7 (not shown), on the shaft 33. The action of the clutch permits free rotation of the shaft during upward movement of the slide but facilitates wedging engagement between the shaft and the clutch sleeve during downward movement of the slide so that, any movement in the downward direction causes the brake drum to rotate with the shaft and thus a continuous resistance to this direction of movement is provided by the brake shoes acting on the drum 70. This driving resistance is normally overcome by the drive motor but when the motor is inoperative the brake resistance is sufficient to prevent any downward movement of the slide due to its own weight.
Patent GB-139547-A (GB)
Title: Improvements in the pneumatic actions of mechanical players for musical instruments
IPC: G10F1/02
Filed: 1919-01-06
Abstract: 139,547. Towner, A. D., and Petters, Ltd. Jan. 6, 1919. Actions.-In a pneumatic action for mechanical players for pianofortes &c., the vacuum chest 1 is fitted on the top board 3 of the pneumatics 2, and communicates directly therewith by an opening 4 controlled by a valve 6. This is operated from above the pneumatic by a diaphragm 12 situated within the vacuum chest and communicating by a duct 14 with the tracker-bar 15. The valve 6 is mounted on one end of a lever 7, the other end of which carries a valve 5 controlling an aperture 10 open to the atmosphere. A return duct 17 with bleed-holes 18 is provided. The vacuum chest 1 may be of wood or metal of channel section; or a rectangular or other metal tube may be employed having openings registering with the openings 4. The diaphragms 12 may be metal stampings. The valves 5, 6 may be circular, oval, or rectangular, and the openings 4, 10 may be in the form of a series of slots. Specification 1550/08 is referred to.
Patent GB-346426-A (GB)
Title: Process for the manufacture of alkyl- and aralkyl-derivatives of cellulose
IPC: C08B11/00
Filed: 1930-01-04
Abstract: Highly etherified alkyl or uaralkyl ethers of cellulose, cellulose hydrate, hydrocellulose &c. are obtained in a single operation without the separate preparation of alkali cellulose, by heating together while stirring or kneading, cellulose, alkali lye and etherifying agent, say, for several hours at 80-150 DEG  C.  To the reaction mixture there may be added solid alkali, indifferent solvents or diluents, and indifferent salts such as common salt in order to promote a more through mixing.  The quantity of water present may be less than the weight of the cellulose.  In examples, the etherifying agent employed is either ethyl chloride or a mixture of ethyl and butyl chlorides, and the temperatures range from 110 DEG to 140 DEG  C.  The ethers obtained may be employed in the manufacture of lacquers, films, artificial silk, plastic masses, and insulating compositions.  Specifications 181,393 and 315,278, [both in Class 2 (ii), Cellulose &c.], are referred to.
Patent GB-1033461-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: BENTLEY WILLIAM
IPC: D04B11/04
Filed: 1964-01-04
Abstract: 1,033,461. Knitting-machines. WILLIAM COTTON Ltd. Dec. 29, 1964 [Jan. 4, 1964], No. 458/64. Heading D1C. Individual pressers 12 are provided in a straight-bar rib machine and have front edge pressing surfaces 20 for the frame needles and laterally projecting portions 17 providing pressing surfaces for the machine needles. The pressers are selected by bits in a pattern drum which is positioned in a forward position in the machine and which is rotated by pawl and ratchet mechanism and advanced to cause the bits to engage the ends of the pressers to make the selection.
Patent GB-340788-A (GB)
Title: Improvements in bobbin changing contrivances for spinning frames
IPC: D01H9/04
Filed: 1930-01-06
Abstract: 340,788. Spinning - machine doffing arrangements. BEK, J. H., 63, Poststrasse, Singen, Hohentwiel, Germany. Jan. 6, 1930, No. 491. [Class 120 (ii).] The bobbin rail of a flyer or gill bar spinning frame carries two rows of bobbins and tilts, for bobbin changing, downwards forwardly about a horizontal axis on the lifting bracket at the rear of the bobbin rail, the flyers being set transversely to allow the tilting; a cooling system being also provided. The lifting bracket d balanced by weights G, Fig. 2, on levers h carries the bobbin rail S which is pivoted on pins x and held during winding by hooks b on the bracket d engaging pins z. The hooks b are swung aside by handles and the rail S tilted forwardly by pinions r geared with rack segments y and rotated by a handwheel c ; the bobbins t on spindles p are then exchanged with empty bobbins on an adjacent frame P. The rail is tilted back, the pins z automatically re-engage the hooks b and the yarn extends over a rod n whereupon part of the yarn is wound off the full bobbins and all the ends are simultaneously severed by the rod n. The cooling system comprises a fan i, Fig. 4, with a built-on electromotor on the rail S, air being blown through the interior of the rail and spindles p.
Patent GB-245784-A (GB)
Title: Improvements in purifying boiler feed-water
IPC: C02F1/20
Filed: 1926-01-07
Abstract: 245,784. Akt.-Ges. f³r Stickstoffd³nger. Jan. 7, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Liquids and gases, separating. - Oxygen and other noxious gases are removed from boiler feedwater by bringing water-vapour into intimate contact therewith, condensation being prevented by maintaining the feed-water at a sufficient pressure.
Patent GB-963223-A (GB)
Title: Timing device for the control of x-ray equipment
Inventor: BOULSOVER GEOFFREY
IPC: H05G1/38
Filed: 1961-01-05
Abstract: 963,223. Time switches. AMALGAMATED DENTAL CO. Ltd. Jan. 4, 1962 [Jan .5, 1961,] No. 550/61. Heading H2B. [Also in Divisions H3 and H5] A time switch operating a dental X-ray machine provides both a variable " on " period and a variable " delay " period between actuation of the mechanism and the commencement of the on period. The time switch has a spindle 4 rotatable by a knob 14 to wind a clock spring 13 and coupled by a pawl and ratchet drive 21, 22 to an escapement mechanism so as to return knob 14 slowly towards its rest position (pointer 15, as shown in Fig. 2). Spindle 4 also carries a cam 7 which operates contacts 12 when pointer 15 passes a zero position on the scale. A second knob 27 coaxial with the first adjusts the position of a cam surface 25 which disengages the drive 21, 22 by a roller 24 when the two pointers 15, 28 coincide. In use, pointer 28 on knob 27 is set to a position on the " X-ray " scale 17 and pointer 15 is set to a desired point on the " delay " scale 18. A latch 29 locks the escapement until a button 30 is depressed when the latch rotates and sets the clockwork in motion. Rotation of latch 29 also turns a cam 39 on the same spindle to close auxiliary contacts 40, the main contacts opening simultaneously. The clock moves the pointer 15 and as it reaches the zero cam 7 closes contacts 12 to energize the X-ray machine until the two pointers coincide when the drive 21, 22 is released, causing knob 14 to return to its rest position, a peg 23 resetting latch 29 and opening contacts 40. Further cams 5, 6 operate additional sets of contacts controlling indicating devices. In a second embodiment using an electronic time switch (Division H3), the indicator operates during the delay period up to a short fixed time before the X-ray discharge commences.
Patent GB-715400-A (GB)
Title: Process for the production of methylene-bis-chloropropionamide
IPC: C07C233/00
Filed: 1952-01-08
Abstract: The invention comprises the new compound methylene - bis - chloropropionamide of formula ClCH2CH2CONHCH2NHCOCH2CH2Cl.  It is prepared by reacting acrylonitrile, formaldehyde and hydrochloric acid together in the gas phase in the presence of steam, an inert gas and a catalyst consisting of aluminium oxide, a mixture of aluminium oxide and boron phosphate, aluminium chloride or a surface-active substance such as clay fragments, preferably at a temperature in the range of 350-400 DEG  C.  If desired, the acrylonitrile may be reacted with compounds which give formaldehyde and hydrochloric acid under the reaction conditions. The new compound may be reacted with liquid ammonia to give the corresponding mono- or diamine and is suitable as an intermediate product for the production of plastics. In the examples: (a) acrylonitrile, formaldehyde and hydrochloric acid are reacted together; (b) acrylonitrile, paraformaldehyde and hydrochloric acid are reacted together; and (c) monochloracetic acid (which gives hydrochloric acid and formaldehyde on heating) is reacted with acrylonitrile in the presence of water, nitrogen and a catalyst to give methylene-bis-chloropropionamide.
Patent GB-463004-A (GB)
Title: Means for automatically controlling the rotational speed of mechanism for winding paper, cloth, carpet, threads, wire or the like
IPC: B65H23/00
Filed: 1936-01-09
Abstract: 463,004. Winding fabrics &c. BARKER, J. E. Jan. 9, 1936, No. 739. [Class 42 (ii)] [Also in Groups IX and XVI] In means for automatically controlling the rotational speed of mechanism for winding paper, cloth, carpet, thread, wire, or similar material, a movable element or feeler, e.g. a roller riding in contact with the surface of the winding of the material is rigidly associated with and controls the angular movement of a wheel forming the primary of a chain-andsprocket gear train through which the radial movement of the feeler due to the increasing or decreasing overall diameter of the winding is transmitted to the operating screw of a variable speed transmission device of the expanding coned pulley type, e.g. as described in Specification 383,710, [Class XXIV], by which the rotational speed of the winding is controlled. The roller 1 rides on the outer surface of the coil 2 of material being wound on beam 3. It is mounted on the arm 4 secured to the shaft 5 of wheel 6, to the periphery of which is secured by a clip 9 the end of chain 8 which drives sprocket 10 on shaft 11 which also carries a wheel 12 to the periphery of which the end of chain 14 is secured by clip 13. Chain 14 drives sprocket 15 on the stub shaft 15a on which is a gear-wheel 16 driving pinion 17 on the same shaft as a larger gear 18 driving pinion 19 on the same shaft as gear 20 driving pinion 21 on the operating screw 21a of the variable speed transmission mechanism 22. This comprises parallel driving and driven shafts 22a and 22b fitted with slidable coned discs forming expanding pulleys 22c connected by belt 22d. Pinion 15 is axially slidable on its shaft 15a and carries a clutch element 15b adapted to engage a clutch element 15c integral with gear 16. The clutch elements are urged together by a spring 15d, and may be separated to disconnect the control of the variable speed mechanism. By changing gears in the train, the apparatus may be modified to suit materials of differing thickness and for very thin materials, e.g. paper, a worm gearing may be interposed in the train.
Patent GB-440146-A (GB)
Title: Improvements in and relating to thermionic valves
IPC: H01J3/02
Filed: 1935-01-09
Abstract: 440,146. Thermionic valves and valve circuits. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. Jan. 9, 1935, Nos. 749 and 750. Convention dates, Jan. 9, 1934 and Jan. 13, 1934. [Classes 39 (i) and 40 (v)] High-vacuum, thermionic valves comprise a slightly positive auxiliary anode close to the incandescent cathode and two or more main anodes carry ing alternating potentials of different phase, and the auxiliary anode and cathode are formed by thin co-planar bands with their narrow edges adjacent. In a double-wave rectifier, Fig. 1<b>, the cathode consists of two strips 2, 3 connected in series and supported at one end from the central strip 4 forming the auxiliary anode, and the main anodes 5, 6 extend at right angles to the plane of the strips 2-4. In a modification, the outer strips are in parallel to act as auxiliary anodes and to supply current through a biassing resistance to the central strip acting as cathode ; if the heating current is alternating, the outer strips and the central strip may act alternately as anode and cathode. A generator for ultrashort waves, Fig. 3, has the main anodes 5, 6 extended and bridged at 18 to form a Lecher system and the anode potential 19 is chosen so that the time of flight of the electrons to an anode 5 or 6 is equal to, or an odd multiple of, the half-cycle of the oscillations generated. The oscillations are modulated by varying the potential of the auxiliary anode by a transformer 22. Grids may be inserted between the cathode and the main anodes and a resonant grid circuit may be coupled to the resonant anode circuit. Ultra-short wave amplifiers and receivers are also referred to. In p-phase rectifiers or amplifiers, p anodes and p grids are arranged around the electrodes 2-4 and the anodes are connected through phase windings to be common source of bias potential. In such arrangements, grid and anode circuits may be coupled together, and valves may be cascaded with the main anodes of one valve connected directly to the grids of another. In detectors, the rectified current is taken from a resistance or transformer in the main anode circuits. Specification 144,647, [Class 40 (v)], is referred to. The Specification as open to inspection under Sect. 91 comprises also constructions having the cathode and auxiliary anodes formed by bars of round cross-section. This subject-matter does not appear in the Specification as accepted.
Patent GB-606045-A (GB)
Title: Improvements in and relating to the casting of films and sheets and coatings formed on rigid supports for use therein
IPC: B29C41/24
Filed: 1946-01-09
Abstract: Process for manufacture of films &c. characterized in that the film-casting supports, either drum or endless belts are coated with a casting layer consisting wholly or partially of one or more glycollic acid ethers of non-sugary polysaccharides and/or their derivatives. Suitable glycollic acid ethers are those of cellulose, amylose and amylopectin; they may be used as the ethers with free -COOH groups or as salts or esters of these compounds. The components of the film solution to be cast determine whether the acid ether or a derivative is to be used, since there must be no reaction between the coating and the casting solution.  The layer may be cast from a solution of the ether itself or as an intermediate product and the final product produced on the band or drum by chemical reaction, for example by casting an aqueous solution of sodium cellulose glycollate and adding acid to convert it to the waterinsoluble acid ether.  Mixed derivates or a coating comprising a mixture of the ether or its derivatives with gelatine may be used.  These casting layers possess great flexibility and have a considerable advantage in that they can be cast from viscous aqueous solutions, thus avoiding the use of organic solvents.  In examples, an endless copper band is coated with a 16 per cent aqueous solution of sodium cellulose glycollate, dried and a cellulose diacetate film cast on it from acetone, and a similar copper band is coated with a 16 per cent aqueous solution of sodium cellulose glycollate, acidified with acetic acid, and polyvinyl acetate in methylene chloride cast upon it.